Subject: Re: [Pcihpd-discuss] RE: [RFC/Patch 0/12] ACPI based root bridge
	hot-add
From: Tom Duffy <tduffy@sun.com>
To: Dely Sy <dlsy@snoqualmie.dp.intel.com>
Cc: gregkh@suse.de, rajesh.shah@intel.com, akpm@osdl.org, dely.l.sy@intel.com,
       len.brown@intel.com,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       linux-pci@atrey.karlin.mff.cuni.cz,
       pcihpd-discuss@lists.sourceforge.net, tony.luck@intel.com,
       Prasad Singamsetty <Prasad.Singamsetty@sun.com>
In-Reply-To: <200503230313.j2N3DYpE010786@snoqualmie.dp.intel.com>
References: <200503230313.j2N3DYpE010786@snoqualmie.dp.intel.com>
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Date: Wed, 23 Mar 2005 15:03:16 -0800
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On Tue, 2005-03-22 at 19:13 -0800, Dely Sy wrote:
> I just did a test of Rajesh's latest patch on 2.6.11.5 with
> Wilcox's acpiphp rewrite and the following patch.  Hot-plug of=20
> PCI Express card worked fine on my i386 system

I have updated to Wilcox's rewrite, Rajesh's stuff, and Dely's latest
patch.  Still seeing these:

[root@intlhotp-1 4]# uname -a
Linux intlhotp-1 2.6.11andro #5 SMP Wed Mar 23 12:00:56 PST 2005 x86_64
x86_64 x86_64 GNU/Linux

[root@intlhotp-1 ~]# modprobe acpiphp
acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
acpiphp: Slot [4] registered
acpiphp: Slot [3] registered

[root@intlhotp-1 ~]# cd /sys/bus/pci/slots/4

[root@intlhotp-1 4]# echo 0 > power

This *does* take this slot off line.  Before, I see in lscpi
08:00.0 Ethernet controller: Intel Corp.: Unknown device 105f (rev 03)
08:00.1 Ethernet controller: Intel Corp.: Unknown device 105f (rev 03)
After, these are gone.

[root@intlhotp-1 4]# cat power
1

Hrm, this should be 0.

[root@intlhotp-1 4]# echo 1 > power
acpiphp_glue: No new device found

There is a card plugged into that slot.

Here is some info from the BIOS:

[root@intlhotp-1 4]# dmidecode
# dmidecode 2.2
SMBIOS 2.3 present.
91 structures occupying 3496 bytes.
Table at 0x000FCA80.
Handle 0x0000
        DMI type 0, 20 bytes.
        BIOS Information
                Vendor: American Megatrends Inc.
                Version: SE7520AF20.86B.P.03.00.0085.092420041113
                Release Date: 09/24/2004

<snip>

Handle 0x0002
        DMI type 2, 15 bytes.
        Base Board Information
                Manufacturer: Intel
                Product Name: SE7520AF2HP
                Version: FRU Ver 0.3

<snip>

Handle 0x0034
        DMI type 9, 13 bytes.
        System Slot Information
                Designation: Slot 4 (PCI_Express x8)
                Type: 64-bit PCI
                Current Usage: Available
                Length: Short
                ID: 3
                Characteristics:
                        3.3 V is provided
                        Opening is shared
                        PME signal is supported

Any ideas?

Thanks,

-tduffy

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